Newton's laws of motion (9) Flashcards
1
Q
Gravitational field strength, g
A
near a planet is defined as the gravitational force acting on each kilogram.
2
Q
Newton’s 2nd law of motion
A
resultant force = mass × acceleration.
3
Q
Terminal speed
A
the speed reached when the weight of an object in free fall is balanced by drag forces acting upwards on the object.
4
Q
Drag
A
the name given to resistive forces experienced by an object moving through a fluid such as air or water.
5
Q
Newton’s 3rd law of motion
A
when body A exerts a force, F, on body B, body B exerts an equal and opposite force, F, on body A.
6
Q
Free body diagram
A
shows all the forces acting on a single body; no other body is shown in the diagram.
